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SM U-23 (Germany)

From Wikipedia, the free encyclopedia

For other ships with the same name, see German submarine U-23.
History
German Empire
NameU-23
Ordered18 March 1911
BuilderFriedrich Krupp Germaniawerft, Kiel
Cost2,808,000 Goldmark
Yard number177
Laid down21 December 1911
Launched12 April 1913
Commissioned11 September 1913
Fate20 July 1915 - torpedoed and sunk off Fair Isle, Scotland, by HMS C27
General characteristics Ocean-going diesel submarine
Class and typeGerman Type U 23 submarine
Displacement
  • 669 t (658 long tons) surfaced
  • 864 t (850 long tons) submerged
Length64.70 m (212.3 ft)
Beam6.32 m (20 ft 9 in)
Draught3.45 m (11 ft 4 in)
Propulsion
  • 2 shafts
  • 2 × Germania 6-cylinder two stroke diesel motors with 1,800 PS (1,320 kW; 1,780 shp)
  • 2 × SSW double Motordynamos with 1,200 PS (880 kW; 1,180 shp)
  • 450rpm surfaced
  • 330 rpm submerged
Speed
  • 16.7 knots (30.9 km/h; 19.2 mph) surfaced
  • 10.3 knots (19.1 km/h; 11.9 mph) submerged
Range
  • 9,910 nmi (18,350 km; 11,400 mi) at 8 knots (15 km/h; 9.2 mph) surfaced
  • 85 nmi (157 km; 98 mi) at 5 knots (9.3 km/h; 5.8 mph) submerged
Test depthabout 50 m (160 ft)
Boats & landing
craft carried		1 dinghy
Complement4 officers, 31 men
Armament
Service record
Part of:
  • IV Flotilla
  • 1 August 1914 - Unknown end
  • III Flotilla
  • Unknown start – 20 July 1915
Commanders:
  • Kptlt. Erwin Weisbach[1]
  • 1 August – 25 November 1914
  • Kptlt. Hans Adam[2]
  • 26 November – 17 December 1914
  • Kptlt. Egewolf Freiherr von Berckheim[3]
  • 18 December 1914 – 12 January 1915
  • Kptlt. Hans Schultheß[4]
  • 13 January – 20 July 1915
Operations: 3 patrols
Victories: 7 merchant ships sunk
(8,822 GRT)

SM U-23[Note 1] was one of the 329 U-boats serving in the Imperial German Navy in World War I.

U-23 was engaged in the naval warfare and took part in the First Battle of the Atlantic.

U-23 served on three war patrols, sinking a total of seven ships for 8,822 gross register tons (GRT). She was baited by the Q ship Princess Louise and torpedoed by HMS C27 at 58°55′N 0°14′E / 58.917°N 0.233°E / 58.917; 0.233, off Fair Isle, in Shetland, Scotland. Twenty four men died and 10 survived.

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Transcription

Summary of raiding history

Date Name Nationality Tonnage[Note 2] Fate[5]
13 March 1915 Invergyle  United Kingdom 1,794 Sunk
15 March 1915 Fingal  United Kingdom 1,562 Sunk
15 May 1915 Martha  Denmark 1,182 Sunk
19 May 1915 Chrysolite  United Kingdom 222 Sunk
19 May 1915 Crimond  United Kingdom 173 Sunk
19 May 1915 Lucerne  United Kingdom 154 Sunk
22 May 1915 Minerva  Norway 3,735 Sunk

References

Notes

  1. ^ "SM" stands for "Seiner Majestät" (English: His Majesty's) and combined with the U for Unterseeboot would be translated as His Majesty's Submarine.
  2. ^ Tonnages are in gross register tons

Citations

  1. ^ Helgason, Guðmundur. "WWI U-boat commanders: Erwin Weisbach". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 16 March 2015.
  2. ^ Helgason, Guðmundur. "WWI U-boat commanders: Hans Adam (Pour le Mérite)". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 16 March 2015.
  3. ^ Helgason, Guðmundur. "WWI U-boat commanders: Egewolf Freiherr von Berckheim (Royal House Order of Hohenzollern)". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 16 March 2015.
  4. ^ Helgason, Guðmundur. "WWI U-boat commanders: Hans Schultheß". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 16 March 2015.
  5. ^ Helgason, Guðmundur. "Ships hit by U 23". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 16 March 2015.

Bibliography

  • Gröner, Erich; Jung, Dieter; Maass, Martin (1991). U-boats and Mine Warfare Vessels. German Warships 1815–1945. Vol. 2. Translated by Thomas, Keith; Magowan, Rachel. London: Conway Maritime Press. ISBN 0-85177-593-4.

This page was last edited on 24 August 2023, at 11:38
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